Web-perfecting rotary printing press



Aug. 22; 1939. BARBER 2,170,526

WEB-PERFECTING ROTARY PRINTING PRESS 3 Sheets-Sheet 1 Filed March 2,1958 INVENTOR VBY I ATTORNEYS Aug. 22, 1939.. H. M. BARBER ,5

wms-mnmc'rme ROTARY PRINTING mass Filed March 2, 1958 a Sheets-Sheet 2 vINVENTOR E L, ATTORNEYS Aug. 22, 1939. H. M; BARBER I WEB-PERFECTINGROTARY PRINTING PRESS 3 Sheets-Sheet 3 Filed March 2, 193a INVENTORATTORNEYS Patented. Aug. 22, 1939 PATENT- OFFICE WEB-PERFECTING ROTARYPRINTING PRESS Howard M. Barber, Pawcatuck, Conn, assignor to C. B.Cottrell & Sons Company, Westerly, R. l, a corporation of DelawareApplication March 2,1938, Serial No. 193,399 5 Claims. (Cl. 10l-179) Inhigh speed web perfecting rotary printing presses where quick dryinginks and web drying units are employed in connection with the web.printing units, it is most important that the several units be solocated 'with respect to one another as to produce the best possibleresults with a minimum amount and best arrangement of the occupied spaceand a minimum travel of the web. This is particularly desirable where apress of this type is combined with slit-f ting, associating, cutting,and sheet collecting mechanisms. v v This invention includes first andsecond printing units'arranged at right angles to each other,

a dryingunit being providedfor the first print-v ing unit and, if sodesired, a drying unit being,

also provided for the second printing unit. Means arealso provided forpassing the web through said printing and drying units in apredetermined path and delivering the web to a predetermined Poi t- Thisinvention more particularly includes a first printing unit, a secondprinting unit extending substantially at right angles from the front endof the first printing unit, drying units for the first and secondprinting units, a web reversing means between the first drying unit andthe second printing unit, and means for. passing the web from the sheetsupply rearwardly under the first drying unit, through the firstprintingunit, forwardly through the first drying unit, forwardly'under-the firstdrying unit to the reversing means,- rearwardly under the second dryingunit, through the second printing unit, forwardly through the seconddrying unit, and finally forwardly under the second drying unit to apredetermined point.

A practical embodiment of my invention is represented in theaccompanying drawings, in

which a Fig. 1 represents in diagram, a plan view of thepress togetherwith the slitting, associating, sheet cutting, and collecting anddelivery mechanisms associated therewith;

Fig. 2 represents in diagram a verticaLsection, taken in the plane ofthe line II-lI of Fig. 1', looking in the direction of the arrows; and

Fig. 3 represents in diagram, a vertical section, taken'in the plane ofthe line III--III of Fig. 1, looking in the direction of the arrows.

The first printing unit is herein represented as,

adapted to print in five colors upon one side of the web, the impressioncylinder being denoted by I, itsfive form'cylinders by 2, 3, 4, 5, 6 andtheir inking mechanisms by I. 8, 9, H], II.

The second printing unit is herein represented as adapted to printinfive colors upon the opposite side of the web, the impression cylinderbeing denoted by 12 and its five form cylinders by l3, M, l5, l6, l1and'their inking mechanisms,

relative positions, means such as a turning bar 23 being provided forreversing the first side printed web between the printing units.

.The drying unit for the first printing unit is herein represented ascomprising a large heating cylinder 24 and two small cooling cylinders25, 26. Steam may be applied through the pipe '21 to'the heatingcylinder 24 and water may be 20 supplied through the pipes 23, 29 to thecooling cylinders 25, 26. I

The drying unit for the second printing unit is herein represented ascomprising a large heating cylinder30 and two small cooling, cylinders35 3t, 32. Steam may be suppliedthrough the pipe 33 to the heatingcylinder 30 and water may be supplied through the pipes 34, 35 to thecooling cylinders 3|, 32.

The web supply is denoted by 36, and it is shown as being located to thefront of and in line with the first printing unit.

The delivery 37, which may be of any well known and approved form, maybe located at any Convenient point. In the present instance 35 thedelivery is shown as being located to the 7 printing unit.

Web slitting, turning, associating and sheet cutting andcollectingmechanisms of any well 40 known or approved form may beprovided for receiving the perfected web from the second printing unit.and for forwarding the product to the delivery -31 a In practice, theweb is passed from the supply, rearwardly through the first printingunit, forwardly through the first drying unit around the reversingmeans, rearwardly through the second printing unit and forwardly throughthe second drying unit, when one is employed, to the slitting,associating, sheet cutting and collecting mechanisms, and thereby to thedelivery.

It will be understood that suitable guide rollers may be providedwherever necessary for leading a the web in the desired path from theweb supply through the printing anddrying units.

It will also he understood that any well known or approved means (notshown herein) may be employed for driving the several units 'andmechanisms, a

It will also be understood that any well known or approved quickdryinginks may be used in the printing units.

From the above description it will be seen that I have provided anarrangement of the several printing and dryingunits of the press wherebythe inks on the freshly printed sides of the web may be thoroughly driedwith a minimum travel of the web, the several units at the same timebeing so positioned that ready access thereto may be obtained.

It will also be seen that the web, after it has I been dried dn eachside thereof, is passed beheath the slitting press of the drying units,thereby eliminating the tendency of the ink to become soft because ofthe heat rising from the said heating members of the drying units.

It is evident that various changes may be resorted to intheconstruction, form and arrangement of the several parts withoutdeparting from the spirit and scope of my invention, and hence I do notintend to be limited to the particular embodiment herein shown anddescribed, but

7 What I claim is:

1. In a web perfecting rotary printing press, flrst'and second printingunits arranged at substantially right angles to each other; drying unitsfor the first and second printing units, each drying unit being in linewith its printing unit, a web supply, and means for passing the webtherefrom rearwardly under the first drying unit and through the firstprinting unit, then forwardly ing unit being in line with itsprintingunit, a web supply, means for passing the web therefromrearwardly under the first drying imitr and through the first printing,unit, then forwardly and through the first drying unit, then forwardlyunder the first drying unit, then rearwardly under the second dryingunit and through the second printing unit, then forwardly through thesecond drying unit and then forwardly under the second drying unit to apredetermined point, and means for reversing the' web between theprinting rmits.

3. In a web perfecting rotary printing press, a; first printingv unit, asecond printing \mit extending at substantially right angles from the.Iront end of the first printing unit, drying imits comprising heatingand cooling cylinders for the first and second printing'units, eachdrying unit being in line with its printing unit; a. web supply,

' and means for passing the webirom the web supply rearwardly throughthe first printing unit,

'then forwardly through the first drying unit,

then rearwardly through the second printing unit, then forwardly throughthe second drying unit and to a predetermined point. a

4. In a webperiecting rotary printing press, a first printing unit, a.second printing unit extending at substantially right anglesrfrom thefront end of the first printing'unit, drying units comprising heatingand cooling cylinders for the flrst and second printing units, eachdrying unit being in line with its printing unit, a web supply,

means for passing the web from the web supply rearwardly through thefirst printing unit, then forwardly throughthe first drying unit, thenrearwardly through the second printing unit, then forwardly through thesecond drying unit' and to a predetermined point, and means forreversing the web between the printing units.

5. In aweb perfecting rotary printing press, first and second printingunits arranged at substantially right angles to each other with theirimpression and form cylinders in similar relative locationsdrying unitsfor the first and second printing units, each drying unit being in linewith its printing unit, and means for pasing the web through saidprinting and drying units and to a predetermined point.

' HOWARD M. BARBER.

